/Engine/Plugins/Runtime/RigVM/Source/RigVM/Public/RigVMFunctions/Math/RigVMFunction_MathFloat.h
Returns PI * 0.5
[USTRUCT](Programming/UnrealArchitecture/Reference/Structs)(Meta=(DisplayName="Half Pi", TemplateName="HalfPi")) struct FRigVMFunction_MathFloatConstHalfPi : public [FRigVMFunction_MathFloatConstant](API\Plugins\RigVM\RigVMFunctions\Math\FRigVMFunction_MathFloatConstant)